The University of Southampton
University of Southampton Institutional Repository

The effect of environmental acoustic noise on optical fibre based velocity and vibration sensor systems

Record type: Article

Interferometric fibre optic sensors are increasingly finding applications 'in the field'. Examples are provided by the use of fibre-based laser Doppler velocimetry (LDV) systems for wind tunnels and by laser vibrometry systems used for example in the monitoring of machine tool wear. Both the wind tunnel,and the factory floor are harsh environments for interferometric sensors. In particular the pick-up of acoustic noise from the air or from vibrating surfaces is a potentially serious problem, broadening and distorting the signal spectrum. A new broadening mechanism, called environmental noise broadening, is discussed and the magnitude of this effect is estimated for typical LDV systems. For flow velocity measurements in wind tunnels, this broadening leads to an overestimate of the turbulence intensity which is more serious for low-speed flows. The statistical formalism introduced here is applicable to any type of fibre-linked extrinsic interferometric sensor.

Full text not available from this repository.

Citation

Pannell, C.N., Jones, J.D.C. and Jackson, D.A. (1994) The effect of environmental acoustic noise on optical fibre based velocity and vibration sensor systems Measurement Science and Technology, 5, (4), pp. 412-417. (doi:10.1088/0957-0233/5/4/015).

More information

Published date: 1994
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 78238
URI: http://eprints.soton.ac.uk/id/eprint/78238
ISSN: 0957-0233
PURE UUID: 7205a5b6-0d0a-45bb-8d7b-4e4a7be27578

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:26

Export record

Altmetrics

Contributors

Author: C.N. Pannell
Author: J.D.C. Jones
Author: D.A. Jackson

University divisions


Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×